You don't need any KiXing to get IIS to use pass-through Windows authentication. You just need the IIS server and the clients setup correctly. I have lots of intranet content that does not allow anonymous browsing.

Hint: You know you have it setup right when IE shows Intranet instead of Internet in the lower right corner of the status bar.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.